CN111372494A

CN111372494A - Bracket with adjustable angle

Info

Publication number: CN111372494A
Application number: CN201880077570.7A
Authority: CN
Inventors: T.科桑克
Original assignee: Fischerwerke GmbH and Co KG
Current assignee: Fischerwerke GmbH and Co KG
Priority date: 2017-11-29
Filing date: 2018-11-16
Publication date: 2020-07-03
Also published as: DE102017128322A1; WO2019105772A1; EP3716814A1

Abstract

The invention relates to an angularly adjustable bracket (1) having a bracket (3) which is arranged pivotably in a U-shaped base part (2) which has circular-arc-shaped teeth (10, 11) on side walls (7) facing away from each other. Two fixing elements (20, 21) are arranged in the bracket (3) with the U-shaped profile, and are pressed together by means of a spring plate (26) and thereby pressed into the teeth (10, 11) on the base part and thereby hold the bracket (3) in its pivoted position.

Description

Bracket with adjustable angle

Technical Field

The invention relates to an angularly adjustable carrier having the features of the preamble of claim 1.

Background

The brackets are used, for example, for fastening cables, liquid and/or gas lines, cable racks and/or walking platforms (Laufsteg), for example, to a wall. By "angularly adjustable" is meant that the bracket has a cantilever arm which is pivotably arranged on a base part which is provided for fixing to, for example, a wall. The angle at which the cantilever projects from, for example, a wall can be changed by the pivotability, for example when the base part is fixed to the wall in such a way that the pivot axis of the cantilever extends horizontally, approximately horizontally, obliquely to the horizontal or in any case not vertically, the cantilever can be oriented horizontally on an oblique wall or on an arched tunnel wall.

Utility model DE 7306928U 1 discloses an angularly adjustable bracket with a base part and a cantilever which is pivotably arranged on the base part about a pivot axis. In one embodiment, the base part of the known bracket is a semicircular U-profile, viewed from one side, in which the shaft is centrally supported, from which axis a threaded bolt projects radially on the end of the semicircular contour of the U-profile projecting from the base part. The cantilever of the known bracket is likewise a profile with a cylindrical shell-like end plate at one end, which end plate has a hole for the passage of the thread of the bolt. The bracket can be clamped with its end plate against the semicircular base part when viewed from the side by means of a nut and in this way be fixed in the desired pivot position on the base part.

Disclosure of Invention

The object of the invention is to provide an angularly adjustable support whose arm can be angularly adjusted in a simple manner.

According to the invention, this object is achieved by a support having the features of claim 1. The angularly adjustable carrier according to the invention has a base part and a cantilever arm which is pivotably arranged on the base part. The base part is provided for example for fixing to a wall, for example by means of screws or threaded bolts which are fixed in the wall by wedges or in another way. Provision is made for the base part to be fastened to the wall, for example, in such a way that the cantilever can be pivoted up and down. The cantilever can thus also be oriented, for example, horizontally, for example, also on an inclined wall or on a curved tunnel wall.

The bracket according to the invention furthermore has a fixing device with a fixing rail and a fixing element which interacts with the fixing rail in order to hold the cantilever in its angular position on the base part. The fastening element can also be designed as a brake shoe or brake lining and the fastening rail can also be designed as a friction surface against which the fastening element can be pressed or, in general, can be acted upon in order to hold the cantilever in its angular position on the base part by frictional engagement. A form-fit connection can also be formed between the fastening rail and the fastening element in order to hold the cantilever in its angular position on the base part. In this case, the fastening element is, for example, a locking pawl, or the fastening element has a mating toothing and the fastening rail has, for example, a toothing for the engagement of the mating toothing of the fastening element or a recess for the engagement of the locking pawl. A combination of friction-locking and form-locking fastening means is likewise possible. The fixing rail can be arranged on the base part and the fixing element can be arranged on the boom or vice versa.

According to the invention, the bracket has an elastic element which loads the fastening element towards the fastening rail. The spring element can be designed as a separate component which in particular bears directly against the fastening element. Alternatively, the spring element can be formed integrally with the spring element or act indirectly on the fastening element. In the case of a one-piece construction, for example, a toothed rack or a catch pawl can be arranged or constructed on the spring element, which toothed rack or catch pawl acts as a fastening element. "integrally" does not exclude that the elastic element and the fixing element are composed of a plurality of assembled components.

In a friction-locking fastening, the cantilever can be pivoted between the fastening element and the fastening rail against friction, which is caused by loading with the spring force of the spring element, for example in such a way that it is pressed tangentially against the cantilever with respect to the line of connection with the pivot axis, which means that a torque is applied to the cantilever. In a force-fitting fastening, the fastening element must be disengaged from the fastening rail in order to be able to pivot the cantilever arm. For this purpose, the toothing or the latching pawl can be inclined, for example, in such a way that a force is exerted on the spring element by the application of a torque to the cantilever, as a result of which the spring element yields and the fastening device is disengaged from the fastening rail.

Preferably, the fixed track is arc-shaped, in particular circular arc-shaped, and preferably extends concentrically about the pivot axis of the cantilever.

A further development of the invention provides for the clamping device to press the two fastening elements against the fastening rail in opposite directions. The friction-locking fastening device can also be fastened by such a clamping device so strongly that the cantilever cannot pivot. The spring element can press the fastening element in the friction-locking fastening against the fastening rail so strongly or weakly that the cantilever arm can be pivoted and thus oriented, preferably by hand. The cantilever can be immovably fixed to the base part by means of the clamping device. The fixing device and the clamping device can be different devices or can also be the same device or have common elements. Such a device is referred to as a "clamping device" here, by means of which the fixing element can be loaded more strongly than with the elastic element of the fixing device or in addition to the elastic element of the fixing device towards the fixing track in order to hold the cantilever against pivoting in a more fixed and preferably immovable manner.

A preferred embodiment of the invention provides for two fastening rails facing toward each other or facing away from each other and two fastening elements which can be loaded toward the fastening rails in order to fasten the cantilever in its angular position with respect to the base part. This embodiment of the invention makes it possible to load the fastening elements separately from one another and toward the fastening rails facing one another, or alternatively to press them together and load them toward the fastening rails facing away from one another. Thereby, the fixation can be performed with internal forces acting between the fixation elements. This allows the cantilever of the bracket to be fixed in its pivoted position without the force required to pivotally support the cantilever on the base part to be loaded for fixing the cantilever.

In order to form a form-locking adjusting device, one embodiment of the invention provides that the fixing rail has a toothing with which the fixing element engages when the fixing element is loaded by the spring element and/or the clamping device toward the fixing rail, so that the cantilever arm is held against pivoting by the form-locking of the fixing element with the toothing of the fixing rail. In the case of a carrier with two fixed rails, if the two fixed rails have teeth, their teeth preferably have the same angular spacing (Winkelteilung). Fastening rails that function by frictional locking without toothing and fastening rails with toothing for form locking are also conceivable. As already mentioned, the elastic element and/or the clamping device can act on both fixing elements and thus load them towards the fixing rail without external forces.

One embodiment of the invention provides that the elastic element holds the fastening device and/or the clamping device, if appropriate, on the carrier in the lateral direction. "lateral direction" refers to a direction extending parallel to the pivot axis of the cantilever. In a further development of the invention, the holding is achieved in that the bracket has a U-shaped profile, in which a spring plate as the spring element is inserted transversely. The spring element is held in the U-shaped profile in the lateral direction by an inner contact on the side walls of the U-shaped profile. In this embodiment of the invention, the spring plate itself can hold the one or more further components of the fastening device and/or of the clamping device in the lateral direction, wherein the one or more further components of the fastening device and/or of the clamping device can be held on the spring plate without play or with play.

One embodiment of the invention provides that the bracket has a profile with a recess in the profile wall, for example an L-shaped profile, a hollow profile, for example a round or angular pipe profile or in particular a U-shaped profile. The recess forms a sliding guide for one or both fixing elements, which guides the one or more fixing elements in a movable manner towards and/or away from one or more fixing tracks. For example, one or more fixing elements can engage in the recess and thus be guided movably. It is also possible to form a plurality of recesses, which are offset from one another, for example, on a profile wall or are identical in the opposite profile wall.

In one embodiment of the invention, at least one fastening element is a component bent from a sheet metal, i.e. a bent sheet metal part.

The features and feature combinations mentioned above in the description, the embodiments and the embodiments of the invention and the features and feature combinations mentioned below in the description of the figures and/or shown in the figures can be used not only in the respectively described or shown combination but also in substantially any other combination or alone. Embodiments of the invention are possible which do not have all the features of the dependent claims. Each feature may be replaced by other disclosed features or combinations of features. An embodiment of the invention may not have all of the features of one or more examples, but may have substantially any portion of the shown features of one example, combined as necessary with one, more or all of the features of one or more other examples.

Drawings

The invention is explained in detail below with the aid of embodiments shown in the drawings. In which is shown:

FIG. 1 shows in perspective view an angularly adjustable bracket according to the invention; and is

Fig. 2 shows the carrier from fig. 1 in an exploded view.

Detailed Description

The angularly adjustable carrier 1 according to the invention shown in the figures has a base part 2 and a cantilever arm 3 which is mounted on the base part 2 so as to be pivotable about a pivot axis 4. The base part 2 is a U-shaped profile, the flanges 5 of which are provided with holes 6 (one of which is hidden in the figure) for fixing to, for example, a wall, not shown, by means of screws, wedges or anchors, not shown, through the holes 6. The side walls 7 of the U-shaped base part 2 are identical and each have a bearing bore 8 for the pivot mounting of the bracket 3, which is coaxial with the pivot axis 4. The pivot axis 4 extends parallel to the base surface 5 of the base part 2 and perpendicular to the side wall 7 of the base part 2. The side walls 7 of the base part 2 each have an elongated hole 9 which runs concentrically around a bearing bore 8 for the pivot mounting of the suspension arm 3 and which runs in the shape of a circular arc and concentrically around the bearing bore 8. The circular arc-shaped elongated holes 9 in the side walls 7 are equivalent. The edges of the side walls 7 of the base part 2 facing away from the flange 5 are likewise circular-arc-shaped, concentric with respect to the bearing bore 8 and concentric with respect to the circular-arc-shaped elongated hole 9 and are identical to one another. The edges of the circular-arc-shaped elongated hole 9 facing away from the flange 5 and the outer part of the bearing bore 8 and the edges of the side walls 7 facing away from the flange 5 have teeth 10, 11 with the same angular spacing. By "identical angular spacing" is meant that the teeth of the tooth sections 10, 11 have the same angular spacing in the circumferential direction, i.e. the teeth of the second tooth section 11 lying further outside are wider than the teeth of the first tooth section 10. The outer edge of the circular-arc-shaped slot 9 remote from the flange 5 of the base part 2, which edge has the first toothing 10, and the edge of the side wall 7, which edge likewise remote from the flange 5 of the base part 2, which edge has the second toothing 11, are referred to below as fixing rails 12, 13.

The bracket 3 likewise has a U-shaped profile, the width of which is the same as the inner width of the side wall 7 of the base part 2, i.e. the clear distance. One end of the bracket 3 projects between the side walls 7 of the U-shaped base part 2 and is mounted pivotably about the pivot axis 4 on the base part 2 by means of a screw 14 which is inserted through a bearing bore 8 in the side wall 7 of the base part 2 and through an equivalent bearing opening 15 in a side wall 16 of the U-shaped bracket 3 and is fastened on the opposite side by means of a cap nut (hutmuter) 17. The cantilever 3 projects radially from the base part 2 relative to the pivot axis 4, i.e. the cantilever 3 projects beyond the edge of the side wall 7 of the base part 2 remote from the flange 5 of the base part 2.

The side walls 16 of the bracket 3, which are also generally understood to be the profile walls of the bracket 3 designed as a U-shaped profile, each have two

recesses

18, 19, in which two fastening elements 20, 21 are accommodated. The two

recesses

18, 19 are respectively identical in the two side walls 16 of the cantilever arm 3 of the carrier 1 according to the invention. The fastening elements 20, 21 extend through the side walls 16 of the boom 3 through the

recesses

18, 19 and project on mutually facing outer sides of the side walls 16 of the boom 3 and overlap the fastening rails 12, 13 on or in the side walls 7 of the base part 2.

The first of the two fixing elements 20 has a central bore 22 through which a clamping screw 23 is inserted, which is screwed into a threaded bore 24 in the second fixing element 21. Between the first fixing element 20 and the screw head 25 of the clamping screw 23, a spring element 26 is arranged, which bears on the first fixing element 20 and presses the two fixing elements 20, 21 together by means of the clamping screw 23. Thereby, the two fixing elements 20, 21 are pressed against the fixing rails 12, 13 on or in the side walls 7 of the base part 2 of the carrier 1 according to the invention, which can generally also be understood as loading the fixing elements 20, 21 towards the fixing rails 12, 13.

Without departing from the inventive concept, the support 1 can also have only one of the fastening rails 12, 13 and also only one fastening element 20, 21 associated with the fastening rail 12, 13 concerned.

The first fixing element 20 is bent from a sheet metal, the longitudinal edge 27 of which is bent obliquely in the direction of the second toothing 11 of the second fixing rail 13 and is loaded or pressed into engagement with the second toothing 11 by the spring force of the spring element 26. The second fixing element 21 has two toothed racks 28 which are loaded or pressed into engagement with the first toothing 10 of the first fixing rail 12 by the spring force of the spring element 26.

The two fastening elements 20, 21, the clamping screw 23 inserted or screwed in and the spring element 26, which elastically clamps the two fastening elements 20, 21 together by means of the clamping screw 23 and presses into the toothing 11, 13 of the fastening rail 12, 13 of the base part 2, and the two fastening rails 12, 13 together with their toothing 11, 13 form a fastening device 29, which secures the angularly adjustable bracket arm 3 of the inventive bracket 1 in its pivoted position on the base part 2. The fastening device 29 is acted on in a form-locking manner by the engagement of the two fastening elements 20, 21 into the toothing 10, 11 of the fastening rails 12, 13. By manual pressing in the circumferential direction with sufficient force, which overcomes the spring force of the spring element 26, presses the two securing elements 20, 21 out of engagement with the teeth 10, 11, the cantilever arm 3 can be pivoted into a further pivot position, in which the securing elements 20, 21 snap into the teeth 10, 11 again. If the clamping screw 23 is tightened, the fixing elements 20, 21 can no longer be disengaged from the toothing 10, 11 of the fixing tracks 12, 13 and the cantilever arm 3 can no longer be pivoted.

The fastening device 29 is form-locking by the engagement of the fastening elements 20, 21 into the toothing 10, 11 of the fastening rails 12, 13. A friction-locking fastening device is also conceivable in which the fastening rails 12, 13, unlike the one shown, do not have toothing, but are smooth, although likewise circular-arc-shaped. In this case, the toothed rack 28 of the second fixing element 21 and, if appropriate, the curvature of the longitudinal edge 27 of the first fixing element 20 can also be omitted, or replaced by friction elements or roughness elements which increase the friction. In this case, the fixing element forms a brake shoe.

The

recesses

18, 19 in the side walls 16 of the U-shaped bracket 3 form sliding guides for the fastening elements 20, 21, which guide the fastening elements 20, 21 in a movable manner in the direction toward the respectively associated fastening rail 12, 13 or toothing 10, 11 and away from the fastening rail 12, 13 or toothing 10, 11, with which the respective fastening element 20, 21 interacts, respectively 20, 13 or toothing 10, 11. This does not exclude the possibility of guiding or moving the fixing elements 20, 21 in another direction.

The spring element 26, which presses the two fastening elements 20, 21 together and loads the teeth 10, 11 or the fastening rails 12, 13, may be, for example, a rubber-elastic ring, a spring washer, a disk spring, or a helical compression spring, which is arranged between the screw head 25 and the first fastening element 20 (not shown). Another possibility is one or more rubber rings (not shown) pressing the two fixing elements 20, 21 together. In this embodiment, the spring element 26 is bent from a spring plate which has on both ends an axis 30 pointing in the direction of the first fixing element 20 and a central opening 31 between them, through which the clamping screw 23 passes. The spring element 26 is as long as the clear width, that is to say as long as the distance of the mutually facing inner sides of the side walls 16 of the suspension arms 3 of the carrier 1 according to the invention, wherein the length of the spring element 26 extends transversely to the suspension arms 3. The spring element 26 thus holds the clamping screw 23 with its central bore 30 and via the clamping screw 23 the two fixing elements 20, 21 in the lateral direction, that is to say transversely to the cantilever 3 or parallel to the pivot axis 4 in the U-profile of the cantilever 3. The elastic element 26 thus retains the fixing means 29 or in any case the parts movable thereof in the cantilever 3.

List of reference numerals

1 bracket

2 base part

3 cantilever

4 pivot axis

5 Flange

6 holes

7 side wall

8 bearing hole

9 slotted hole

10 first tooth part

11 second tooth part

12 first fixed rail

13 second fixing rail

14 screw

15 bearing opening

16 side wall

17 cap nut

18 first recess

19 second recess

20 first fixing element

21 second fixing element

22 center hole

23 clamping screw

24 threaded hole

25 screw head

26 elastic element

27 longitudinal edge

28 rack

29 fixing device

30-shaft

31 open in the center.

Claims

1. An angularly adjustable bracket, the bracket having: a base part (2) that can be fixed to a wall; a boom (3) which is pivotably arranged on the base part (2); a fastening device (29) with which the cantilever (3) can be fastened against pivoting on the base part (2), wherein the bracket (1) has fastening rails (12, 13) which are arranged on the base part (2) or on the cantilever (3) and which extend around the pivot axis (4) of the cantilever (3), and fastening elements (20, 21) which interact with the fastening rails (12, 13) and which are arranged on the cantilever (3) or on the base part (2) and can be loaded toward the fastening rails (12, 13) such that the cantilever (3) is held against pivoting around the pivot axis (4) with respect to the base part (2) by a frictional and/or form-locking connection between the fastening elements (20, 21) and the fastening rails (12, 13), characterized in that the bracket (1) has an elastic element (26) and the elastic element (26) loads the fixing element (20, 21) towards the fixing track (12, 13).

2. A carriage in accordance with claim 1, characterized in that the fixing track (12, 13) extends arcuately, in particular in a circular arc and/or concentrically, about the pivot axis (4) of the cantilever (3).

3. A carriage in accordance with claim 1 or 2, characterized in that the carriage (1) has two fixing rails (12, 13) facing away from or towards each other and two fixing elements (20, 21) which are pressed in opposite directions towards the fixing rails (12, 13) by the elastic element (26) and/or the clamping means.

4. A carriage in accordance with claim 3, characterized in that the two fixing elements (20, 21) can be clamped together or separated from each other and can thereby be loaded towards the two fixing rails (12, 13).

5. The carriage according to one or more of claims 1 to 4, characterized in that the carriage (1) has brake shoes as fixing elements (20, 21) which hold the cantilever (3) against pivoting by frictional locking with the fixing rails (12, 13) when they are loaded towards the fixing rails (12, 13).

6. A carriage as claimed in one or more of the preceding claims, characterised in that the fixing rail (12, 13) has a toothing (10, 11) with which the fixing element (20, 21) engages when it is loaded towards the fixing rail (12, 13), so that the cantilever (3) is held against pivoting by a form-fit of the fixing element (20, 21) with the toothing (10, 11) of the fixing rail (12, 13).

7. A carriage in accordance with claims 3 and 6, characterized in that both fixing tracks (12, 13) have teeth (10, 11) with the same angular spacing.

8. A carriage as claimed in one or more of the preceding claims, characterised in that said elastic element (26) retains said fixing means (29) on said carriage (1) in a lateral direction.

9. A bracket according to claim 8, characterized in that the cantilever (3) has a U-profile into which a spring plate is laterally inserted as a spring element (26), which spring plate holds the fixing means (29) in the U-profile in the lateral direction by abutting against the inside on the side wall (16) of the U-profile.

10. A carriage in accordance with one or more of the preceding claims, characterized in that the cantilever (3) has a profile with a recess (18, 19) in a profile wall (16), and that the recess (18, 19) forms a sliding guide for a fixing element (20, 21), which guides the fixing element (20, 21) in a movable manner in the direction of and away from a fixing track (12, 13).

11. A carriage as claimed in one or more of the preceding claims, characterised in that at least one fixing element (20, 21) is a bent piece of sheet material.